| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 11/19/2013 | US8586508 Polysaccharide based cement additives |
| 11/19/2013 | US8584766 Seal assembly for sealingly engaging a packer |
| 11/19/2013 | US8584765 Apparatus and methods for assisting in setting a downhole tool in a well bore |
| 11/19/2013 | US8584764 Downhole apparatus with a swellable support structure |
| 11/19/2013 | US8584759 Hydraulic fracture diverter apparatus and method thereof |
| 11/19/2013 | US8584756 Methods of isolating annular areas formed by multiple casing strings in a well |
| 11/19/2013 | US8584754 Delayed-tackifier coated particulates and methods relating thereto |
| 11/19/2013 | US8584746 Oilfield isolation element and method |
| 11/19/2013 | US8584744 Debris chamber with helical flow path for enhanced subterranean debris removal |
| 11/19/2013 | CA2719959C Plug release apparatus |
| 11/19/2013 | CA2526714C Apparatus and method for recovering fluids from a well and/or injecting fluids into a well |
| 11/17/2013 | CA2816061A1 Pumpable seat assembly and use for well completion |
| 11/16/2013 | CA2777203A1 Blowout preventer and rams |
| 11/14/2013 | WO2013170166A1 Variable geometry fracture sealing tester |
| 11/14/2013 | WO2013169649A1 One trip casing or liner directional drilling with expansion and cementing |
| 11/14/2013 | WO2013169420A1 Valve and method of supporting a seal of a valve |
| 11/14/2013 | WO2013169418A1 Disintegrable and conformable metallic seal, and method of making the same |
| 11/14/2013 | WO2013169417A1 Disintegrable metal cone, process of making, and use of the same |
| 11/14/2013 | WO2013169416A1 Disintegrable tubular anchoring system and method of using the same |
| 11/14/2013 | WO2013169255A1 Methods and systems for long-term monitoring of a well system during abandonment |
| 11/14/2013 | WO2013131165A8 Magnetic installation and retrieval tool for fluid lift plungers |
| 11/14/2013 | WO2012149080A3 Marine subsea riser systems and methods |
| 11/14/2013 | US20130300066 Disintegrable and conformable metallic seal, and method of making the same |
| 11/14/2013 | US20130299724 Nested cyclinder compact blowout preventer |
| 11/14/2013 | US20130299201 Apparatus And Method For Plugging Blowouts |
| 11/14/2013 | US20130299200 Wellbore Tools and Methods |
| 11/14/2013 | US20130299192 Disintegrable tubular anchoring system and method of using the same |
| 11/14/2013 | US20130299186 Hydra-Connector |
| 11/14/2013 | US20130299185 Disintegrable metal cone, process of making, and use of the same |
| 11/14/2013 | US20130299177 Method for capping a well in the event of subsea blowout preventer failure |
| 11/14/2013 | US20130299176 Hybrid-tieback seal assembly |
| 11/14/2013 | US20130299174 Method and system for fracking and completing wells |
| 11/14/2013 | US20130299172 Shear seal blowout preventer |
| 11/14/2013 | US20130299171 Oil and gas well cement systems using elemental sulfur |
| 11/14/2013 | US20130299170 Calcium aluminate cement composition containing a set retarder of an organic acid and a polymeric mixture |
| 11/14/2013 | US20130299169 One Trip Casing or Liner Directional Drilling With Expansion and Cementing |
| 11/14/2013 | US20130299165 Methods and systems for long-term monitoring of a well system during abandonment |
| 11/14/2013 | US20130299161 Double packer apparatus |
| 11/14/2013 | DE102012009179A1 Method for inward closing of drill pipes during drilling or during conveying process of oil and gas in sea, involves introducing self-sufficient closure mechanism into pipe during onshore and offshore drilling in electromechanical manner |
| 11/13/2013 | EP2662526A2 Methods and apparatus for subsea well intervention and subsea wellhead retrieval |
| 11/13/2013 | EP2661535A2 Test packer and method for use |
| 11/13/2013 | EP2661534A2 Temperature dependent swelling of a swellable material |
| 11/13/2013 | EP2661533A2 Subsea safety system having a protective frangible liner and method of operating same |
| 11/13/2013 | CN203285480U Blowout-preventing device used for assisting high-pressure water jet slotting |
| 11/13/2013 | CN203285408U High pressure layered water injection tubular column |
| 11/13/2013 | CN203285391U Pressure-differential oil jacket communication valve |
| 11/13/2013 | CN203285386U Rapid inflation grouting hole sealing device |
| 11/13/2013 | CN203285385U Hydraulic control packer |
| 11/13/2013 | CN203285384U Top packer for preventing sand |
| 11/13/2013 | CN203285383U Small-diameter double-sealing layering steam injection packer |
| 11/13/2013 | CN203285382U Hydraulic packer |
| 11/13/2013 | CN203285381U Novel oil pipe blocking device |
| 11/13/2013 | CN203285380U Blowout preventer for water exploration operation in underground coal mine |
| 11/13/2013 | CN203285379U Packing box-adjustable eccentric-grinding-resisting device |
| 11/13/2013 | CN203285378U Sealing rotating disk for repairing well |
| 11/13/2013 | CN203285377U Spring tube gas-dust-removal hole sealing device |
| 11/13/2013 | CN203285375U Blocking gauge cutter |
| 11/13/2013 | CN103392050A Downhole tools |
| 11/13/2013 | CN103388467A Bidirectional displacement deflection correction type sucker rod sealer |
| 11/13/2013 | CN103387823A Shear-thickening water-blocking profile control agent, preparation method thereof and application thereof in an oil field |
| 11/13/2013 | CN103387680A Method for preparing fluid gel by utilizing formation temperature to form blocking valve to block air layer |
| 11/13/2013 | CN103387639A Fluid gel for generating seal valve plugging air layers by virtue of formation temperature |
| 11/13/2013 | CN102676137B Crude oil emulsifier for water shutoff of oil well and preparation method and application of crude oil emulsifier |
| 11/13/2013 | CN102137983B Sand control screen assembly and method for use of same |
| 11/13/2013 | CN101979821B Self-locking cementing stopper combination device |
| 11/13/2013 | CN101963050B Sucker rod deviation-based anti-eccentric wear sealing packing box |
| 11/12/2013 | US8579504 Subsea and landing string distributed temperature sensor system |
| 11/12/2013 | US8579038 Sealing apparatus |
| 11/12/2013 | US8579029 System, method and treatment fluid for controlling fines migration |
| 11/12/2013 | US8579023 Composite downhole tool with ratchet locking mechanism |
| 11/12/2013 | CA2746567C In-situ solidification of invert emulsion fluids to form gas tight annular barrier |
| 11/12/2013 | CA2583538C Expandable seal |
| 11/12/2013 | CA2576482C Polish rod clamping device |
| 11/12/2013 | CA2576333C Wellhead blowout preventer with extended ram for sealing central bore |
| 11/08/2013 | CA2776598A1 Wellbore tools and methods |
| 11/07/2013 | WO2013166392A1 Method and apparatus to control water migration into electrical submersible pump motors |
| 11/07/2013 | WO2013166359A2 Seal stem |
| 11/07/2013 | WO2013166214A1 Assembly and method to secure tubing string to blowout preventer |
| 11/07/2013 | WO2013165729A1 Quick connect coupling for cementing operations and the like |
| 11/07/2013 | WO2013165679A1 Heat treatment for removal of bauschinger effect or to accelerate cement curing |
| 11/07/2013 | WO2013165494A2 Protected retaining bands |
| 11/07/2013 | WO2013165255A1 An expansion control device for a packer body and also a piping tool, method and use for controlling the expansion of the packer body |
| 11/07/2013 | WO2013164599A1 Wellbore encasement |
| 11/07/2013 | WO2013164343A2 Bridge plug tool |
| 11/07/2013 | WO2013164242A1 Position monitoring system for subsea bellow compensators |
| 11/07/2013 | WO2012177926A3 Liner top packer for liner drilling |
| 11/07/2013 | US20130292138 Seal Stem |
| 11/07/2013 | US20130292127 Plug installation system and method |
| 11/07/2013 | US20130292123 Degradable Balls for Use in Subterranean Applications |
| 11/07/2013 | US20130292120 Biodegradable activators to gel silica sol for blocking permeability |
| 11/07/2013 | US20130292119 Downhole plug |
| 11/07/2013 | US20130292113 System, apparatus and process for collecting balls from wellbore fluids containing sand |
| 11/07/2013 | CA2862857A1 An expansion control device for a packer body and also a piping tool, method and use for controlling the expansion of the packer body |
| 11/06/2013 | EP2660422A1 Position monitoring system for subsea bellow compensators |
| 11/06/2013 | EP2660421A2 Actuator switch for a downhole tool, tool and method |
| 11/06/2013 | EP2659082A1 Subsea pressure control system |
| 11/06/2013 | CN203271729U High-temperature and high-pressure leaking stoppage simulator |
| 11/06/2013 | CN203271670U Hydraulic expansion type surface layer cement injection packer |
| 11/06/2013 | CN203271669U Dropping control unit for horizontal well |
| 11/06/2013 | CN203271668U Horizontal well dragging and fracturing high-pressure packer |